Self-locking connector

Abstract

The utility model relates to a self-locking connector comprising a plug and a connector, and the plug comprises a plug conductor and a plug housing. The connector comprises a connector conductor and a connector shell. A circumferential limiting mechanism used for limiting rotation of the plug and the connector and an axial limiting mechanism used for limiting axial movement of the plug and the connector are arranged between the plug shell and the connector shell. The axial limiting mechanism comprises an insertion block arranged on the connector shell and a limiting groove formed in the plug shell, and the circumferential limiting mechanism comprises a clamping groove formed in the plug shell and a clamping block arranged on the connector shell. The axial limiting mechanism and the circumferential limiting mechanism are arranged between the connector shells, when the plug is in butt joint with the connector, the axial movement of the plug and the connector is limited in the limiting groove through the insertion block, the circumferential rotation of the plug and the connector is limited by inserting the clamping block into the clamping groove, and the plug and the connector are prevented from falling off; and the power utilization safety is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of cable connectors, in particular to a self-locking connector. Background Technique

[0002] Cable connectors are used to connect two active devices to transmit current or signals. The connector includes a plug and a connector. The plug and the connector are respectively connected to cables. By inserting the plug into the connector, the conduction of two sections of cables is realized, so as to realize the conduction of current or signals. The plug generally includes a plug conductor, and an insulating sleeve is arranged outside the plug conductor. Similarly, the connector also includes a connector core and an insulating sleeve arranged outside the connector core.

[0003] When the cable connector is in use, by inserting the plug into the connector, the plug conductor is conducted with the connector conductor, so that the cable connector can work. When the cable connector is in use, it is necessary to ensure that the plug conductor and the connector conductor do not fall off.

[0004] The existing anti-detachment structure of cable connectors, for example, CN218828227U discloses a high-current connector, which realizes the anti-detachment structure between the plug and the connector by using a threaded connection between the connector housing and the plug housing. Although such a method can prevent the plug and the connector from falling off, during the use process, it is necessary to rotate and lock or rotate and disconnect the connection between the plug and the connector with effort, which is very inconvenient to use. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problem that the above-mentioned cable connector is prone to detachment and cause potential safety hazards, and provide a self-locking connector.

[0006] In order to achieve the above purpose, the solution adopted by the utility model is: a self-locking connector, including a plug and a connector. The plug includes a plug conductor and a plug housing; the connector includes a connector conductor and a connector housing. A circumferential limiting mechanism for restricting the rotation of the plug and the connector and an axial limiting mechanism for restricting the axial movement of the plug and the connector are arranged between the plug housing and the connector housing; the axial limiting mechanism includes a plug block arranged on the connector housing and a limiting groove arranged on the plug housing. A guiding groove for guiding the plug block into the limiting groove is also arranged on the plug housing. The plug block enters the limiting groove to restrict the axial movement between the plug and the connector; the circumferential limiting mechanism includes a clamping groove arranged on the plug housing and a clamping block arranged on the connector housing. The clamping block is inserted into the clamping groove to restrict the circumferential rotation of the plug and the connector.

[0007] Through the above technical solution, when the plug is docked with the connector, the movement of the plug and the connector in the axial direction is restricted by the insertion block in the limit groove, and the circumferential rotation of the plug and the connector is restricted by the clamping block inserted into the clamping groove, so that the plug and the connector can be stably connected, preventing the plug and the connector from falling off and ensuring the electrical safety.

[0008] As a preference of the present utility model, a clamping block mounting groove is further provided on the connector housing, and the clamping block is arranged in the clamping block mounting groove through a spring. When the plug is docked with the connector, the clamping block is inserted into the clamping groove without external force, and the clamping block can be disengaged from the clamping groove by overcoming the spring force.

[0009] Through the above technical solution, when the plug is docked with the connector, the clamping block is inserted into the clamping groove under the action of the spring to prevent the plug and the connector from rotating. When an external force acts on the clamping block to overcome the spring force, the clamping block can be withdrawn from the clamping groove, so that the rotation between the plug and the connector can be realized.

[0010] As a preference of the present utility model, a sliding groove is provided on the clamping block mounting groove, a sliding block is provided on the clamping block, the sliding block can slide on the sliding groove, and a spring mounting portion is further provided on the clamping block.

[0011] Through the above technical solution, the clamping block can be moved on the clamping block mounting groove through the cooperation of the sliding block and the sliding groove. At the same time, through the cooperation of the sliding block and the sliding groove, the clamping block will not be disengaged from the clamping block mounting groove.

[0012] As a preference of the present utility model, the limit groove is arranged along the circumferential direction of the plug housing, the guiding groove is arranged along the circumferential direction of the plug housing, one end of the guiding groove is communicated with the limit groove, and the other end is provided with an opening for the insertion block to enter.

[0013] Through the above technical solution, the insertion block can enter the guiding groove axially from the opening direction of the guiding groove and enter the limit groove through rotation, realizing the circumferential limit between the plug and the connector. When the plug rotates to drive the insertion block to enter the guiding groove from the limit groove, the axial limit between the plug and the connector can be released. When the insertion block exits the guiding groove from the opening of the guiding groove, the disconnection between the plug and the connector is completed.

[0014] As a preference of the present utility model, a jack is provided at one end where the plug conductor is docked with the connector conductor, a contact spring is arranged in the jack, a plug pin is provided at one end where the connector conductor is docked with the plug conductor, and the plug pin can be inserted into the jack.

[0015] Through the above technical solution, the contact spring can keep a good contact between the plug conductor and the connector conductor, improving the connection stability.

[0016] Preferably, color rings are provided on both the plug housing and the connector housing of the present utility model.

[0017] Through the above technical solution, by providing color rings, color identification can be used to prevent misinsertion between connectors.

[0018] Preferably, a connecting flange is provided on the connector housing of the present utility model.

[0019] Through the above technical solution, by providing a connecting flange on the connector housing, the connector can be fixed to the cabinet.

[0020] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0021] 1. By providing an axial limiting mechanism and a circumferential limiting mechanism between the connector housings of the present utility model, when the plug is docked with the connector, the movement of the plug and the connector in the axial direction is restricted by the insertion block in the limiting groove, and the circumferential rotation of the plug and the connector is restricted by the insertion of the clamping block into the clamping groove, so that the plug and the connector can be stably connected, preventing the plug and the connector from falling off and ensuring electrical safety.

[0022] 2. Connect the clamping block with the spring. When the plug is docked with the connector, the clamping block is inserted into the clamping groove under the action of the spring to prevent the plug and the connector from rotating. When an external force acts on the clamping block to overcome the spring force, the clamping block can be withdrawn from the clamping groove, so that the rotation between the plug and the connector can be realized. And the insertion block can enter the guiding groove axially along the opening direction of the guiding groove and enter the limiting groove through rotation to realize the circumferential limit between the plug and the connector. When the plug rotates to drive the insertion block to enter the guiding groove from the limiting groove, the axial limit between the plug and the connector can be released. When the insertion block exits the guiding groove from the opening of the guiding groove, the disconnection between the plug and the connector is completed, so that the quick locking or disconnection connection between the plug and the connector can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the self-locking connector according to Embodiment 1 of the present utility model.

[0024] Figure 2 is a sectional view of the self-locking connector according to Embodiment 1 of the present utility model.

[0025] Figure 3 is a schematic structural diagram of the plug according to Embodiment 1 of the present utility model.

[0026] Figure 4 is a sectional view of the plug according to Embodiment 1 of the present utility model.

[0027] Figure 5It is a schematic structural diagram of the connector in Embodiment 1 of the present utility model.

[0028] Figure 6 It is a schematic structural diagram of the self-locking connector in Embodiment 2.

[0029] Figure 7 It is a schematic structural diagram of the plug in Embodiment 2.

[0030] Figure 8 It is a schematic structural diagram of the connector in Embodiment 2

[0031] Explanation of reference numerals: 1 - plug; 11 - plug housing; 12 - plug conductor; 13 - card slot; 111 - limit slot; 112 - guide slot; 121 - jack; 122 - contact spring; 2 - connector; 21 - connector housing; 22 - connector conductor; 211 - insertion block; 3 - card block; 31 - slider; 4 - spring; 5 - card block installation groove; 51 - sliding groove; 6 - color ring; 7 - connection flange. Detailed implementation manners

[0032] The following is a further detailed description of the present utility model in conjunction with the attached Figure 1-8 Explanation.

[0033] Embodiment 1:

[0034] Refer to Figures 1 to 5 This embodiment discloses a self-locking connector, including a plug 1 and a connector 2. The plug 1 includes a plug conductor 12 and a plug housing 11; the connector 2 includes a connector conductor 22 and a connector housing 21. The plug 1 can be inserted into the connector 2. When the plug 1 is inserted into the connector 2, the outer wall of one end of the plug housing 11 of the plug 1 cooperates with the inner wall of one end of the connector housing 21, and the plug conductor 12 is connected to the connector conductor 22. In this embodiment, a jack 121 is provided at one end of the plug conductor 12 where it is docked with the connector conductor 22, a contact spring 122 is provided in the jack 121, a pin 221 is provided at one end of the connector conductor 22 where it is docked with the plug conductor 12, and the pin 221 can be inserted into the jack 121. The contact spring can make the contact between the plug conductor and the connector conductor closer and more stable.

[0035] A circumferential limiting mechanism for restricting the rotation of the plug 1 and the connector 2 and an axial limiting mechanism for restricting the axial movement of the plug 1 and the connector 2 are provided between the plug housing 11 and the connector housing 21.

[0036] In this embodiment, the axial limiting mechanism includes a plug block 211 provided on the connector housing 21 and a limiting groove 111 provided on the plug housing 11. Specifically, a plug block 211 is provided on the inner wall of one end of the connector housing 21 where it docks with the plug housing 11, and a limiting groove 111 is formed on the outer wall of one side of the plug housing 11 where it docks with the connector housing 21. A guiding groove 112 for guiding the plug block 211 into the limiting groove 111 is also provided on the plug housing 11. When the plug block 211 enters the limiting groove 111, the axial movement between the plug 1 and the connector 2 is restricted. In this embodiment, the limiting groove 111 is arranged along the circumferential direction of the plug housing 11, and the guiding groove 112 is also arranged along the circumferential direction of the plug housing 11. One end of the guiding groove 112 communicates with the limiting groove 111, and the other end is provided with an opening for the plug block 211 to enter.

[0037] The circumferential limiting mechanism includes a clamping groove 13 provided on the plug housing 11 and a clamping block 3 provided on the connector housing 21. Specifically, the clamping groove 13 is arranged on the part of the plug housing 11 that is not inserted into the connector housing 21, and the clamping block 3 is provided on the outer wall of the connector housing 21. The clamping block 3 is inserted into the clamping groove 13 to restrict the circumferential rotation of the plug 1 and the connector 2.

[0038] In this embodiment, a clamping block mounting groove 5 is provided on the connector housing 21. The clamping block 3 is arranged in the clamping block mounting groove 5 through a spring 4. A sliding groove 51 is provided on the clamping block mounting groove 5, and a sliding block 31 is provided on the clamping block 3. The sliding block 31 can slide on the sliding groove 51, and a spring mounting portion 32 is also provided on the clamping block 3. When the plug 1 and the connector 2 are completely docked, the clamping block 3 is inserted into the clamping groove 13 without external force, and the clamping block 3 can be disengaged from the clamping groove 13 by overcoming the acting force of the spring 4.

[0039] To prevent misinsertion between connectors, color rings 6 are provided on both the plug housing 11 and the connector housing 21. By providing the color rings 6, color identification can be used.

[0040] In this embodiment, a connection flange 7 is provided on the connector housing 21. By providing fixing holes on the connection flange 7, the connector 2 can be fixed to the cabinet.

[0041] For the self-locking connector disclosed in this embodiment, when it is necessary to dock the plug 1 with the connector 2, the guide groove 112 on the plug housing 11 is aligned with the insertion block 211 on the connector housing 21, and the plug 1 is inserted axially into the connector 2. Then, the plug 1 is rotated along the direction of the limiting groove 111. When the rotation is in place, the locking block 3 on the connector housing 21 is inserted into the slot 13 under the action of the spring 4, thus completing the circumferential limitation of the plug 1 and the connector 2. At this time, the insertion block 211 enters the limiting groove 111 to realize the axial limitation of the plug 1 and the connector 2. Therefore, the plug 1 and the connector 2 complete the self-locking function.

[0042] When it is necessary to pull out the plug 1 from the connector 2, by applying an external force, for example, using a hand to disengage the locking block 3 from the slot 13, and then rotating the plug 1 in the reverse direction so that the insertion block 211 on the connector housing 21 enters the guide groove 112, and then the plug 1 can be pulled out in the direction away from the connector 2.

[0043] Embodiment 2:

[0044] Referring to Figures 6 to 8 , the rest of this embodiment is the same as that of Embodiment 1. The difference is that in this embodiment, the insertion block 211 of the axial limiting mechanism is arranged on the inner wall of the plug 1 close to the connector 2, and the limiting groove 111 and the guide groove 12 are arranged on the outer wall of the connector 2 close to the plug 1. The slot 13 in the circumferential limiting mechanism is arranged on the connector housing 2, and the locking block 3 is arranged on the outer wall of the plug housing 11.

[0045] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A self-locking connector, comprising a plug (1) and a connector (2), wherein the plug (1) comprises a plug conductor (12) and a plug housing (11); and the connector (2) comprises a connector conductor (22) and a connector housing (21), characterized in that: A circumferential limiting mechanism for limiting the rotation of the plug (1) and the connector (2) and an axial limiting mechanism for limiting the axial movement of the plug (1) and the connector (2) are provided between the plug housing (11) and the connector housing (21); the axial limiting mechanism comprises an insert block (211) provided on the connector housing (21) and a limiting groove (111) provided on the plug housing (11); a guide groove (112) for guiding the insert block (211) to enter the limiting groove (111) is also provided on the plug housing (11); the insert block (211) enters the limiting groove (111) to limit the axial movement between the plug (1) and the connector (2); the circumferential limiting mechanism comprises a card slot (13) provided on the plug housing (11) and a card block (3) provided on the connector housing (21); the card block (3) is inserted into the card slot (13) to limit the circumferential rotation of the plug (1) and the connector (2).

2. The self-locking connector according to claim 1, characterized in that: A card block installation groove (5) is also provided on the connector housing (21), and the card block (3) is arranged in the card block installation groove (5) via a spring (4). When the plug (1) and the connector (2) are connected, the card block (3) is inserted into the card slot (13) without the action of external force, and the card block (3) can be separated from the card slot (13) by overcoming the action force of the spring (4).

3. The self-locking connector according to claim 2, characterized in that: A slide groove (51) is arranged on the block installation groove (5), a slider (31) is arranged on the block (3), the slider (31) can slide on the slide groove (51), and a spring installation part (32) is also arranged on the block (3).

4. The self-locking connector according to claim 1, characterized in that: The limiting groove (111) is arranged along the circumferential direction of the plug housing (11), and the guiding groove (112) is arranged along the circumferential direction of the plug housing (11); one end of the guiding groove (112) is connected to the limiting groove (111), and the other end is provided with an opening for the insertion block (211) to enter.

5. The self-locking connector according to claim 1, characterized in that: A socket (121) is provided at one end where the plug conductor (12) and the connector conductor (22) are connected, a contact spring (122) is provided in the socket (121), and a plug pin (221) is provided at one end where the connector conductor (22) and the plug conductor (12) are connected, and the plug pin (221) can be inserted into the socket (121).

6. The self-locking connector according to claim 1, characterized in that: Color rings (6) are provided on both the plug housing (11) and the connector housing (21).

7. The self-locking connector according to claim 1, characterized in that: A connecting flange (7) is provided on the connector housing (21).

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